Hey there, great video, really enjoyed it. We're happy you like the game, hopefully the bug didn't prevent you from seeing much of the demo, the dungeon is quite large. Might be the same bug reported by a few other players, but one that somehow managed to stay hidden during the demo runs we did on our Discord.
One lesson learned is, the tutorial could be better - the characters start with an upgrade point for abilities - so the player can personalize the build from the start, for both available characters. Doing that makes the game easier and more interesting from the first fights. Our bad, we'll update the tutorial pages in an update to the demo.